Fun concept and such cute little orcs! Growing my army one cage break at a time felt super rewarding.
A few thoughts on the balance: the movement speed felt a bit slow relative to the huge map, and I would’ve loved some kind of reward or bonus for taking down the knights. I also really enjoyed the skeleton's flavor text, but the pauses interrupted the flow (maybe consider using speech bubbles that don't freeze the action?) Finally, since the game has great replay value, a more encouraging 'Game Over' line like 'Your army WILL rise again!' would be a nice touch!
Cool proposal for the jam!